NVIDIA GeForce RTX 4090 Max-Q vs AMD Radeon R9 M295X

VS

NVIDIA GeForce RTX 4090 Max-Q

AMD Radeon R9 M295X

We compared two Mobile platform GPUs: 16GB VRAM GeForce RTX 4090 Max Q and 4GB VRAM Radeon R9 M295X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 4090 Max-Q 's Advantages

Released 8 years and 2 months late

Boost Clock1455MHz

More VRAM (16GB vs 4GB)

Larger VRAM bandwidth (448.0GB/s vs 160.0GB/s)

7680 additional rendering cores

Lower TDP (80W vs 250W)

Score

Benchmark

FP32 (float)

GeForce RTX 4090 Max Q +856%

28.31 TFLOPS

Radeon R9 M295X

2.961 TFLOPS

GeForce RTX 4090 Max Q

VS

Radeon R9 M295X

Graphics Card

Jan 2023

Release Date

Nov 2014

GeForce 40 Mobile

Generation

Crystal System

Mobile

Type

Mobile

PCIe 4.0 x16

Bus Interface

MXM-B (3.0)

Clock Speeds

930 MHz

Base Clock

-

1455 MHz

Boost Clock

-

1750 MHz

Memory Clock

1250 MHz

Memory

16GB

Memory Size

4GB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

256bit

448.0GB/s

Bandwidth

160.0GB/s

Render Config

-

Compute Units

32

76

SM Count

-

9728

Shading Units

2048

304

TMUs

128

112

ROPs

32

304

Tensor Cores

-

76

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per CU)

64 MB

L2 Cache

512 KB

-

Theoretical Performance

163.0 GPixel/s

Pixel Rate

23.14 GPixel/s

442.3 GTexel/s

Texture Rate

92.54 GTexel/s

28.31 TFLOPS

FP16 (half)

2.961 TFLOPS

28.31 TFLOPS

FP32 (float)

2.961 TFLOPS

442.3 GFLOPS

FP64 (double)

185.1 GFLOPS

Board Design

80W

TDP

250W

-

Portable Device Dependent

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

AD103

GPU Name

Amethyst

GN21-X11

GPU Variant

Amethyst XT

Ada Lovelace

Architecture

GCN 3.0

TSMC

Foundry

TSMC

4 nm

Process Size

28 nm

45.9 billion

Transistors

5 billion

379 mm²

Die Size

366 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (12_0)

4.6

OpenGL

4.6

3.0

OpenCL

2.0

1.3

Vulkan

1.2

8.9

CUDA

-

6.7

Shader Model

6.3

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